Deprecations#

Policy#

If the behavior of the library has to be changed, a deprecation cycle must be followed to warn users.

A deprecation cycle is not necessary when:

  • adding a new function, or

  • adding a new keyword argument to the end of a function signature, or

  • fixing buggy behavior

A deprecation cycle is necessary for any breaking API change, meaning a change where the function, invoked with the same arguments, would return a different result after the change. This includes:

  • changing the order of arguments or keyword arguments, or

  • adding arguments or keyword arguments to a function, or

  • changing the name of a function, class, method, etc., or

  • moving a function, class, etc. to a different module, or

  • changing the default value of a function’s arguments.

Usually, our policy is to put in place a deprecation cycle over two minor releases (e.g., if a deprecation warning appears in 2.3, then the functionality should be removed in 2.5). For major releases we usually require that all deprecations have at least a 1-release deprecation cycle (e.g., if 3.0 occurs after 2.5, then all removed functionality in 3.0 should be deprecated in 2.5).

Note that these 1- and 2-release deprecation cycles for major and minor releases is not a strict rule and in some cases, the developers can agree on a different procedure upon justification (like when we can’t detect the change, or it involves moving or deleting an entire function for example).

Todo#

Make sure to review networkx/conftest.py after removing deprecated code.

Version 3.0#

  • In readwrite/gml.py remove literal_stringizer and related tests.

  • In readwrite/gml.py remove literal_destringizer and related tests.

  • In utils/misc.py remove is_string_like and related tests.

  • In utils/misc.py remove make_str and related tests.

  • In utils/misc.py remove is_iterator.

  • In utils/misc.py remove iterable.

  • In utils/misc.py remove is_list_of_ints.

  • In utils/misc.py remove consume.

  • In utils/misc.py remove default_opener.

  • In utils/misc.py remove empty_generator.

  • Remove utils/contextmanagers.py and related tests.

  • In drawing/nx_agraph.py remove display_pygraphviz and related tests.

  • In algorithms/chordal.py replace chordal_graph_cliques with _chordal_graph_cliques.

  • In algorithms/centrality/betweenness_centrality_subset.py remove betweenness_centrality_source.

  • In algorithms/centrality/betweenness.py remove edge_betweeness.

  • In algorithms/community_modularity_max.py remove old name _naive_greedy_modularity_communities.

  • In linalg/algebraicconnectivity.py remove _CholeskySolver and related code.

  • In convert_matrix.py remove to_numpy_matrix and from_numpy_matrix.

  • In readwrite/json_graph/cytoscape.py, change function signature for cytoscape_graph and cytoscape_data to replace the attrs keyword. argument with explicit name and ident keyword args.

  • In readwrite/json_graph/tree.py, remove attrs kwarg from tree_graph and tree_data.

  • Undo changes related to the removal of pyyaml. Remove the __getattr__ definitions from networkx/__init__.py, networkx/readwrite/__init__.py and networkx/readwrite/nx_yaml.py and remove networkx/readwrite/tests/test_getattr_nxyaml_removal.py

  • Remove readwrite/gpickle.py and related tests.

  • Remove readwrite/nx_shp.py and related tests (add info in alternatives).

  • Remove copy method in the coreview Filtered-related classes and related tests.

  • In algorithms/link_analysis/pagerank_alg.py replace pagerank with pagerank_scipy.

  • In algorithms/link_analysis/pagerank_alg.py rename pagerank_numpy as _pagerank_numpy.

  • In convert_matrix.py remove order kwarg from to_pandas_edgelist and docstring

  • Remove readwrite/json_graph/jit.py and related tests.

  • In utils/misc.py remove generate_unique_node and related tests.

  • In algorithms/link_analysis/hits_alg.py remove hub_matrix and authority_matrix

  • In algorithms/link_analysis/hits_alg.py, remove hits_numpy and hist_scipy.

  • In classes remove the ordered module and the four Ordered classes defined therein.

  • In utils/decorators.py remove preserve_random_state.

  • In algorithms/community/quality.py remove coverage and performance.

  • Remove testing.

  • In linalg/graphmatrix.py remove adj_matrix.

  • In algorithms/similarity.py replace simrank_similarity with simrank_similarity_numpy.

  • In algorithms/assortativity/mixing.py remove numeric_mixing_matrix.

  • In algorithms/assortativity/connectivity.py remove k_nearest_neighbors.

  • In utils/decorators.py remove random_state.

  • In algorithms/operators/binary.py remove name kwarg from union and docstring.

  • In generators/geometric.py remove euclidean and tests.

  • In algorithms/node_classification/ remove hmn.py, lgc.py, and utils.py after moving the functions defined therein into the newly created node_classification.py module, which will replace the current package.

  • In algorithms/link_analysis/pagerank_alg.py, remove the np.asmatrix wrappers on the return values of google_matrix and remove the associated FutureWarning.

  • In convert_matrix.py remove from_scipy_sparse_matrix and to_scipy_sparse_matrix.

  • In linalg/attrmatrix.py remove the FutureWarning, update the return type by removing np.asmatrix, and update the docstring to reflect that the function returns a numpy.ndarray instance.

  • In generators/small.py remove make_small_graph and make_small_undirected_graph.

  • In convert_matrix.py remove to_numpy_recarray.

  • In classes/function.py remove info.

  • In algorithms/community/modularity_max.py, remove the deprecated n_communities parameter from the greedy_modularity_communities function.

  • In algorithms/distance_measures.py remove extrema_bounding.

  • In utils/misc.py remove dict_to_numpy_array1 and dict_to_numpy_array2.

  • In utils/misc.py remove to_tuple.

  • In algorithms/matching.py, remove parameter maxcardinality from min_weight_matching.

  • In drawing/nx_pydot.py, change PendingDeprecationWarning to DeprecationWarning.

Version 3.2#

  • In generators/directed.py remove the create_using keyword argument for the scale_free_graph function.

  • Remove pydot functionality drawing/nx_pydot.py, if pydot is still not being maintained. See #5723

  • In readwrite/json_graph/node_link.py remove the attrs` keyword code and docstring in ``node_link_data and node_link_graph. Also the associated tests.